Radiator attachment



July 12, 1932- G. w. BLACKMORE RADIATOR ATTACHMENT Filed March 25. 1929 Patented July 12, 1932 .UNITED STATES TENT orr ce GEORGE w. BLAoKMoRE, or PITTSBURGH, PENNSYLVANIA, ASSIGNQR TO AUTOMATIC GAs STEAM RADIATOR COMPANY, on PITTSBURGH, PENNSYLVANIA, A CORPORA- TION OF PENNSYLVANIA RADIATOR ATTACHMENT Application filed March 23, 1929." Serial No. 349,397.

My invent-ion relates to radiator attachments and more particularly to filling devices for radiators having an enclosed heating fluid.

In using radiators isolated from a central heating unit, it is customary to enclose a body of fluid, usually water, in a fluid tight radiator. A burneris inserted in the radiator for heating the fluid and converting it into low pressure vapor which circulates throughout the radiator and dissipates heat. A common form of such radiators is a gas fired radiator, although it is to be understood that the present invention is not limited to any particular style of radiator, and that it is applicable to radiators using a wide variety of fuels. Such radiators are usually supplied with a filling attachment by which fluid is supplied to the radiator. In supplying fluid, it is poured into the attachment and flows into the body of the radiator. However, as the gases confined in the radiator have had to escape through the same opening as the incoming fluid, the fluid was agitated and tend- 7 ed to spatter out over the adjacent radiator surfaces and objects. Where the radiator is mounted in a house, such spattering is particularly objectionable. With such an attachment, the ultimate level of the fluid in the radiator is limited substantially to the level of the upper surface of the fluid passageway in the attachment.

I provide a filling attachment for radiators in which a passageway is provided for supplying liquid to the radiator and a separate passageway is provided for permitting the escape of gases in the radiator without compelling the gases to mingle with the incoming fluid. The passageway for the escape of gases may be eifective at a position in the radiator above the top of the liquid supplying passageway so that the liquid level in the radiator can be brought above the inlet opening. The two passageways can be formed in a single casting, if desired,-or one of the passageways may be formed by placing a tube in a casting. I

The accompanying drawing illustrates certain present preferred embodiments of the invention, in which Figure 1 is a perspective view of a portion of a radiator embodying my invention,

Figure 2 is a sectional view of a radiator and filling attachment shown in Figure 1,

Figure 3 is a plan view of a modified form a of filling attachment, and

' Figure 1 is a sectional view thereof taken along the section line IVIV of Figure 3.-

. Referring to Figures 1 and 2, a radiator 2 compris es a plurality of intermediate units 3 and end units 4: (only one of which is illusv trated), connecting flanges 5, a burner 6, a

thermostatically operated fuel regulator 7 and a filling attachment 8. The connecting flanges of theunits 3and 4:, together with openings 9 in the units,combine toform a combustion chamber in the radiator around the walls of which the heating liquid 10 circulates. The foregoing structural features of A the radiator are well known in the art.

The filling attachment '8 is seated in a threaded boss-11 in the unit l. .The position of the boss 11 is determined with respect to the desired level of the fluid 10 in the radiator. The outer end or inlet of the filling attachment 8 is provided with threads12on which a cap 13'is screwed. The cap 13 is preferably provided with a head 14 having faces 15 for the reception of a wrench. The

top of the filling attachment 8 is disposed above the liquid levelin the radiator 2.

To-prevent spattering and bubbling when liquid is poured into the filling attachment by reason of the escape of displaced gases in the radiator, a passageway 16 is formed in' i the fiiling attachment. In Figure 2 the passageway 16 is illustrated as being formed of a bent tube secured as by welding or brazing interiorly of the filling attachment. An end 17 of the tube constituting the passageway 16 is bent to overhang the threaded edge of the filling attachment 8 passing throughv the boss 11. The overhanging end of the tube attachment 8 to permit the filling ofthe radiator to a. level near that of the top of the attachment 8. A small passageway is preferably left between the end 18 of the tube and the cap.13 when in position. Accordingly Y when fil16" (-1I1Cl l7LlS positioned to extend vertically in the radiator, the gases .confined above the fluid 1 may escape through the passageway 16, eventhough the lVel o f the fluid is materially above" the opening in the boss 11. This permits the filling of the radiator to a depth greater thaniis possible where a plain opening is relied upon, b'othior the escape of the confinedjgases' and for thei entrance of fluid. After the radiator is filled :In testimonyawhereofl haveihereunto set my hand. 7 a

GEORGE W. BLAGKMORE.

:Jto the desired levehas shown by the level of the fluid in'thefilling attachment8, the cap ii l3r-is screwed down which closes the radiator. 7

radiator is normally determined-by the posiition of theweb 19. I Y

WVhileI have showna-nd described certain preferred embodiment-s oftheinvention,"it is to'be understoodthat it maybeothe'rwiseembod'ied within-the-spirit of the invention and nvit ho'ut departing from the scope ofythe' appended claims. L a 1 claim as' m invention: 1. In combination with aradiator having a water-space, a vapor space above the water level and a threaded opening through aside 40 wall of the radiator below the water level, a filling attachment threaded into said opening andhav'in'g its inlet upwardly directed, said atta'chment having a web separating a lower passageway for conducting liquid into the ra'diator from an upper passageway for venting entrapped gases while the water space is bein'g'filled. ,a In combination with a radiator structure comprising heating units having a liquid reservoirformed therein, a vapor spaceabove f'the liquid level and an opening through a side wallbelow the liquid level, an elbow seated in said'opening with its free end up- In combination with a radiatorihaving liquid level and an opening through a. side 6'5 l-owerpassageway for conducting liquid into the radiator fro'm-an upp er' vent passageway a' liquid reservoir, a vapor space above the LOO 

